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iOS

Posted by Herman Kwan
Herman Kwan
5,062 Points

Where did the sum come from?

I don't get the part where you did

if case .sum(let x)

Where did the case .sum even come from? And what does the (let x) do?

Brandon Mahoney
.a{fill-rule:evenodd;}techdegree seal-36
Brandon Mahoney
iOS Development with Swift Techdegree Graduate 30,149 Points

Can you link to the exercise.